Couple of thoughts on your operation in general... sounds like you're in the same situation as I am, got 150 acres of old growth forest with steep hills. Wish I'd started when I first read about it 5 years ago, but I'm moving forward now and that's what's important.
It's going to be a learning process for your specific situation. Where will it grow best, where won't it grow? I started small, one pound of seeds and 100 3YO roots. Bedded or potted a couple of hundred seeds to see how they'd do, planted the rest on hillsides, in a wide spread to see where it came up the best. Just now transplating a few of the potted seeds to see how effective that is, and I'm transplanting in stages - some each month, to see if waiting a while helps. Wildflowers are a good indicator - if you see wild ginger, bloodroot, trillium or jack in the pulpit, sang will like that.
Got both seeds and roots from wildgrown, looks like a quality product. As I'm in KY, they were close, and it's recommended that you get your sang from someone close to where you will be farming.
I've also heard concerns about disease from the mass producers on the west coast. If you pack sang in closely, it will get fungus. Don't know if that carries over to the seeds.
Rather than dive in with a big investment that you might lose because you planted it in the wrong place or the wrong way, I'd suggest you start modestly the first year and learn your land and the plant. Once you find out what sang likes and doesn't like, then go to town. It's a finicky little plant. If it was easy to raise, there'd be tons of it and it wouldn't sell for so much.
templeje - check the zone map. LA is probably too hot for sang. It likes cool weather. But what the heck - get a pound of seeds and see how they do.
